Question

How does a full octet affect trends among the noble gases?

Answer 1

The answer is that a full octet makes the noble gases nonreactive. Hope this helps

Answer 2

Full octet means all the noble gases have their octet full that is they have their valence shell full, there is no lacking of electron in the valence shell that can be received and there is no extra electron present in the valence shell that can be donated to another element. So that means noble gases are less reactive and more stable due to their full octet. So full octet makes noble gases less reactive and more stable.